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Keywords: salt body
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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594516
... flow assurance applied geoscience structural geology us government gas hydrate-bearing system mc-118 stability zone hydrate gas hydrate gulf reservoir characterization upstream oil & gas salt body woolsey mound thermobaric modeling simonetti exploration geophysicist 10...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594858
... with a few labelled sections in crossline and/or inline, we employ sequential 2D and pseudo-3D approach to first detect the salt surfaces approximately and then the salt body by using the salt surfaces as source of labels in the complementary depth/time direction, to train another machine which provides high...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583057
... prediction. We therefore conclude that our new method is a viable tool for automated salt delineation from seismic depth images. machine learning deep learning accuracy reservoir characterization upstream oil & gas pseudo label salt body prediction neural network reflection padding salt...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584034
... to the previously processed legacy image. Template-matching full-waveform inversion was used to shape the salt geometry. Gravity-driven modeling was additionally used to validate and optimize the allochthonous salt bodies. Subsequently, common image point tomography iterations and reflection-based fullwaveform...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584006
... drops in depth is introduced to recover the top parts of salt bodies. Then an automatic salt flooding is applied to reconstruct deeper parts of the salt. Finally, in order to improve the accuracy of inverted model which is strongly affected by anisotropy, an anisotropic FWI is used to update velocity...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584203
... by the exploration geophysics community in recent years, the inversion of salt bodies remains a challenge because of severely limited penetration of seismic waves through them, which obscures the view underneath. Hence, with such scarce information in the seismic data, it becomes imperative to quantify uncertainty...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3592980
... energy is both strongly coherent and exhibits identifiable spatially varying characteristics in the computed VSGs. In particular, after rotating the data components we find that radial-radial VSGs show the direct influence of salt bodies on surface-wave propagation. This suggests that low-frequency...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423283
... We propose a variant of the U-Net neural network, dubbed U-SaltNet, for the task of salt body identification. We have incorporated several existing state-of-the-art modules into our neural network architecture. These modules include scSE, FPA and AG modules, etc. We validate our scheme on real...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3418905
... artificial intelligence seismic data salt body basis function radial basis function bayesian model swi fwi Stochastic full waveform inversion (SWI) of seismic data for FWI starting models Jinsong Chen, Uwe K. Albertin, Kurt Nihei, Sam Kaplan, Michael Hoversten, Lin Zhang, and Dimitri Bevc Chevron...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426425
... Historically complex salt bodies (e.g. Canopy, Salt Weld…) can introduced serious imaging issues for geophysicists with distorted seismic images both beneath salt body and in the vicinity of the salt flanks or welds (Ian F. Jones, et al., 2014). This is mainly related to absorption...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426925
... Depth imaging projects dedicated to hydrocarbon exploration or field development rely heavily on velocity model building. When salt bodies are present, their accurate delineation is crucial to ensure the quality of seismic images, especially for sub-salt targets. We investigate a supervised deep...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426105
... upstream oil & gas interpreter velocity model exploration geophysicist 10 neural network salt flood image salt body seg international exposition seismic image prediction accuracy convolutional layer salt boundary reservoir characterization flood image sediment flood image salt-flood...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3417484
... neural network adaptive u-net machine learning deep learning salt body detection artificial intelligence accuracy seg international exposition gulf salt body inline exploration geophysicist 10 salt boundary reservoir characterization upstream oil & gas prediction...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428375
... Location: 361F Presentation Type: Oral structural geology salt body artificial intelligence workflow upstream oil & gas tm-fwi exploration geophysicist 10 inversion earth model building case study scenario testing full-waveform inversion seg international exposition reservoir...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215092
... reservoir characterization implementation salt body sharp contrast medium full waveform inversion elastic fwi upstream oil & gas velocity model top salt parameterization computational efficiency migrated image bottom salt numerical accuracy application inversion waveform inversion...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215164
... ABSTRACT In this paper, we present an application of most advanced DL (Deep Learning) approaches, in characterizing subsurface salt body on seismic images. Nowadays, DL has been widely used in many industries and achieving tons of successful results, while it is pioneering work to explore...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215236
... for instant identification of small-scale events, to locate the pinch-out positions of formations and the edges of subsurface irregularities, such as edges of salt bodies. With the advent of time, these diffracted waves have been recognized as physically reliable carriers of high-resolution structural imaging...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215296
... inversion for salt bodies : 88th Annual International Meeting, SEG , Expanded Abstracts , 1043 – 1047 , doi: 10.1190/segam2018-2995963.1 . Lewis , W. , B. Starr , and D. Vigh , 2012 , A level set approach to salt geometry inversion in full-waveform inversion : 82nd...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216676
... misinterpretation with full-waveform inversion : SEG Technical Program Expanded Abstracts , 1143 – 1147 , doi: 10.1190/segam2018-2997711.1 . subsalt zone objective function reflection seg international exposition alkhalifah waveform inversion salt body upstream oil & gas rfwi workflow...

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